Loom for weaving double-pile fabrics.



v PATENTED DEC. 5, 1905. G. ZIMBRMANN. -LOOM FOR WEAVING DOUBLE PILE'PABR APPLICATION IlLED NOV. 5,1904.

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FQR lll EAlllt-Q @QUElmE FlLE Specification of Letters Patent.

Patented. Bee. 5,,1995.

Anplicetion filed l 5, 190% Serial No. 231,550.

To all whom it may concern/.-

Be it known that I, GEORGE Zninmusus, l

citizen of the United States, res-ding in lhiledelplus, Pennsylvania, have in ited cert-sin lniprovements in Looms for l fesaving Double- Plle Fabrics, of which the following is n snccification.

My invention relates to that class of pilefabric-wesving looms in which two independ ent backing-Webs are produced one above and the other below, a s'e'sries Q interposed separator bars or plstes, the pile-forming werp-threeds being shedded beck end forth in the spaces between these bars on plates, so as to engage first with one backing-web end then with the other end the crossing threads which connect the two beck; g-webs being subsequently severed midwey between said backing-webs, so es to produce two independent fabrics, each with a cut-pile The object of my invention to simplify the construction and improve the operation of looms of this class.

In the accompanying drawings, Figure 1 is s longitudinel section oi? sufficient of a loom to illustrate my pr scntinvention. Fig. 2 is a perspective View of of the loom, and Fl 3 is a perspective view illustrating a modification. of the invention.

Reference being bad in the first instance to Fig. 1 of the drawings, 1 represents the breast-beam of the loom, and 2 port of the swinging lay with the usual reed 3 and shuttle-rsce l.

needs 5 The pile-forming warp use con trolled by the harness-cords of suitsble jacquard apparatus, the binding warp-threzuls 7 of theupper bashing fabric :u'e controlled by 'heddles 8, and the binding werp thr'eads 9 of the lower backing fabric ere controlled by heddles 10, end in addition. to these lied dies there is another heddle ll, which controls a. series of rods or bars 12, the rear ends of these bars being pivoted st 13 to the bore theheddie l1, and their forward ends being provided with pivotins 14;, which are adapted. to slots let in the inner ends of the separator bers'or plates 15, whose forward ends ere secured in slots in has 16., which is properly mounted upon the top of the h'seest-beeui 1. There are as nanny of these separator hers or plates 15 may be necesthe bucking fabrics,

sery to properly support there being, by preference, one supporting he? or plate for each longitudinal row of pile in the fabric to be produced, and the outer end of each bar 15 is slotted, shown at 17, for the reception of the cutting edge of c knife 18, which is secured ton bar 19, having aportion suitably guided in a. transverse groove thebnr 16, so that the knife can be traversed back and forth across the loom in order to sever the \vsrp-threznls which extend from one backing fabric to the other.

in the present instance l hove shown pilewere threads hiu'ino 'six threads in a. set, three of these threads being embedded in the upper backing fabric end the other three being embedded in the lower backing fabric, the wsrp-threznls cl each fabric beingsocurely bound by means of welt-threads 20, which are interwoven with said warpthreeds and with the binding wsrp-thrcuds 7 or i the pile were-threads being carried from one backing fabric to the other, in accordance with the color requirements of the pattern. Hence, in n pattern i'eqniringsix colors only three pile wsrothreeds will be contained in each backing iric. V I

ll? desired, a stutter Warp thrcedor threads may also be combined with each backing fabric in order to iinpstndditionnl body to the latter, such stullerivsr breads being controlled by 1 suitable heddles.

The purpose of the rods or hers 12, which connect the meddle Ill nod separator-plates 15, is to aid in directing the we t-thresds 2(] into the upper or lower bucking fabrics, as reuh-ed, end to relieve the\vsrwthrcmls in large measure from the strain of such duty. By pivoting ssid rodeo! bars 12 at one end to the heddlc at the opposite end to the separzv tor-plates their tree movement can be cftected without imposing-any restraint upon the rising-und-fslling movement of the beddle, and by no" ment of the pivotal connection between each bar 12 end its correspomling sepsrstor-plste by reason of the slot i l longitudinal strain upon the hm ll or its connections, due to the constantly-vcrying distance between its oppo site pivotal connections, is overcome and the bending or buckling of the burs w otherwise ceused is eliiectuslly prevented. instead of providing c slotted connection be tween each bar 12 and its corresponding sepsrutor-plete 15 the reverse construction may be ztdoptmh-thet is to'savy, the bar 12* may be ittiug bnclt-sndd orth move men night slotted, as at 21, for the reception of the pivotpin 22, whereby it is connected to the heddle i 11, as shown, t r instance, in Fig. 3.

Having thus described my in ven-tion,I claim and desire to secure by Letters Patent 1. The combination, in a loom for weaving double-pile fabrics, of the weaving mechanism, separator-plates interposed between the upper and lower backing fabrics and having rigisl connection with e rigid transverse bar of the loom, weft-thrend-directing bars having pivotal connection with said separator-plates, and n controlling heddlc for said directorbars with which the latter also have pivotal connection, substantially specified.

2. Thecombiz'nition, in n loom for weaving I double-pile fabrics, of the weaving meehnnism, se niretor-plates interposed between the upper and lower backing fabrics, weft-threaddirccting bars having pivotal connection with said separntor-plntes, and :1 controlling'heddie for said director-bnrs and with which the letter also have pivotal connection, one of said pivotal connections being slotted,substan tielly as specified.

The combination, in a loom for weaving double-pile fabrics, of weaving mechanism, separator-platesinterposed between the upper and lower backing fabrics and having rigid connection with a rigid tinnsvcrse bar of the loom and also slots open at the outer ends of the plates, and s trensacrsclvmoving knife 1 I whose cutting edge enters said slots, substantially as specified.

4. The combination in a loom for weaving double-pile fabrics; of Weaving mechanism, separator-plates interposed between the upper and lower backing fabrics, said separatorplates having slots open at the outer ends, a. bar upon which said separator plates are mounted, and a transversely-movable cutting knife also mounted on said ber'and having a cutting edge which enters the slots in the separator-pletes, substantially as specified.

The combination, in a loom for weaving double-pile fabrics, of weaving mechanism, separator-plates interposed between the upper and lower backing fabrics and having rigid connection with a rigid transverse bar of the loom, said plates also having open-ended slots at their front ends, a transversely-movable knife having a, cutting edge entering said slots, director-bars having pivotal connection with the inner ends of the separator-plates, and a controlling-heddle for said bars also having pivotal connection therewith, substantially as specified.

In testimony whereofI have signed my name to this specification in the presence of two subscribing witnesses.

GEORGE ZIMERMANN. Witnesses:

MAY B. MoDERMo'rT. Jos. H. KLEIN. 

